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A randomized controlled trial to assess the effect of dexamethasone on the incidence of the acute phase response following treatment with zoledronic acid

In persons receiving treatment with zoledronic acid for fracture prevention or Paget's disease, does the administration of oral dexamethasone, compared to placebo, reduce the incidence of acute phase response?

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ANZCTR
Registry ID
ACTRN12615000794505
Enrollment
40
Registered
2015-07-30
Start date
2015-09-17
Completion date
2016-07-27
Last updated
2020-01-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Brief summary

The aim of this study is to determine whether the daily temperature profile of patients receiving a zoledronic acid infusion is improved by the administration of oral dexamethasone at the time of infusion, compared to placebo. The study will also assess whether there is a decreased incidence and/or severity of symptoms of acute phase response (APR) with oral dexamethasone compared to placebo. This is a prospective randomized-controlled trial of 40 individuals undergoing treatment with zoledronic acid for fracture prevention or Paget’s disease. Individuals meeting inclusion criteria will be randomly and equally allocated to receive either dexamethasone 4mg orally or a placebo tablet at the time of zoledronic acid infusion. Incidence and severity of the acute phase response, determined via assessment of symptoms and temperature, will be compared between groups. At baseline, each participant will undergo oral temperature measurement and will complete a questionnaire relating to symptoms of APR. Daily assessments will continue for 3 days following the intervention. .Fifteen days after the intervention, participants will receive another phone call to inquire about ongoing symptoms.

Interventions

A single dose of dexamethasone 4mg will be given as an oral tablet at the same time that the zoledronic acid infusion is started. Zoledronic acid is conventionally given as a dose of 5mg intravenously over 15 minutes. However, it may also be given as a dose of 2.5mg over 30-45 minutes in patients with mild renal impairment. The decision regarding dose and duration of zoledronic acid infusion will be made by the treating physician prior to study enrollment. To facilitate data collection, parti

A single dose of dexamethasone 4mg will be given as an oral tablet at the same time that the zoledronic acid infusion is started. Zoledronic acid is conventionally given as a dose of 5mg intravenously over 15 minutes. However, it may also be given as a dose of 2.5mg over 30-45 minutes in patients with mild renal impairment. The decision regarding dose and duration of zoledronic acid infusion will be made by the treating physician prior to study enrollment. To facilitate data collection, participants will receive telephone calls from a study investigator one day, four days, and fifteen days following this intervention.

Sponsors

Bone & Joint Research Group, University of Auckland
Lead SponsorUniversity

Study design

Allocation
Randomised controlled trial
Intervention model
Parallel
Primary purpose
Treatment
Masking
Blinded (masking used) (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
All
Age
20 Years to No maximum
Healthy volunteers
No

Inclusion criteria

Females or males aged 20 or older. Prescribed zoledronic acid for the first time for fracture prevention or Paget's disease.

Exclusion criteria

Prior treatment with zoledronic acid. History of fever, infection, or influenza-like illness within the past week. Diabetes mellitus or uncontrolled hypertension (BP >160/90) Treatment with glucocorticoids within the past week. History of adverse reaction to glucocorticoids. Major systemic illness, including malignancy.

Outcome results

None listed

Source: ANZCTR · Data processed: Mar 10, 2026